Buggy code:
public class Snippet128 { public static void main ( String [ ] args ) { Display display = new Display ( ) ; final Shell shell = new Shell ( display ) ; GridLayout gridLayout = new GridLayout ( ) ; gridLayout . numColumns = 3 ; shell . setLayout ( gridLayout ) ; ToolBar toolbar = new ToolBar ( shell , SWT . NONE ) ; ToolItem itemBack = new ToolItem ( toolbar , SWT . PUSH ) ; itemBack . setText ( "Back" ) ; ToolItem itemForward = new ToolItem ( toolbar , SWT . PUSH ) ; itemForward . setText ( "Forward" ) ; ToolItem itemStop = new ToolItem ( toolbar , SWT . PUSH ) ; itemStop . setText ( "Stop" ) ; ToolItem itemRefresh = new ToolItem ( toolbar , SWT . PUSH ) ; itemRefresh . setText ( "Refresh" ) ; ToolItem itemGo = new ToolItem ( toolbar , SWT . PUSH ) ; itemGo . setText ( "Go" ) ; GridData data = new GridData ( ) ; data . horizontalSpan = 3 ; toolbar . setLayoutData ( data ) ; Label labelAddress = new Label ( shell , SWT . NONE ) ; labelAddress . setText ( "Address" ) ; final Text location = new Text ( shell , SWT . BORDER ) ; data = new GridData ( ) ; data . horizontalAlignment = GridData . FILL ; data . horizontalSpan = 2 ; data . grabExcessHorizontalSpace = true ; location . setLayoutData ( data ) ; final Browser browser ; try { browser = new Browser ( shell , SWT . NONE ) ; } catch ( SWTError e ) { <START_BUG> System . out . println ( ( "Count<seq2seq4repair_space>not<seq2seq4repair_space>instantiate<seq2seq4repair_space>Browser:<seq2seq4repair_space>" + ( e . getMessage ( ) ) ) ) ; <END_BUG> return ; } data = new GridData ( ) ; data . horizontalAlignment = GridData . FILL ; data . verticalAlignment = GridData . FILL ; data . horizontalSpan = 3 ; data . grabExcessHorizontalSpace = true ; data . grabExcessVerticalSpace = true ; browser . setLayoutData ( data ) ; final Label status = new Label ( shell , SWT . NONE ) ; data = new GridData ( GridData . FILL_HORIZONTAL ) ; data . horizontalSpan = 2 ; status . setLayoutData ( data ) ; final ProgressBar progressBar = new ProgressBar ( shell , SWT . NONE ) ; data = new GridData ( ) ; data . horizontalAlignment = GridData . END ; progressBar . setLayoutData ( data ) ; Listener listener = new Listener ( ) { public void handleEvent ( Event event ) { ToolItem item = ( ( ToolItem ) ( event . widget ) ) ; String string = item . getText ( ) ; if ( string . equals ( "Back" ) ) browser . back ( ) ; else if ( string . equals ( "Forward" ) ) browser . forward ( ) ; else if ( string . equals ( "Stop" ) ) browser . stop ( ) ; else if ( string . equals ( "Refresh" ) ) browser . refresh ( ) ; else if ( string . equals ( "Go" ) ) browser . setUrl ( location . getText ( ) ) ; } } ; browser . addProgressListener ( new ProgressListener ( ) { public void changed ( ProgressEvent event ) { if ( ( event . total ) == 0 ) return ; int ratio = ( ( event . current ) * 100 ) // ( event . total ) ; progressBar . setSelection ( ratio ) ; } public void completed ( ProgressEvent event ) { progressBar . setSelection ( 0 ) ; } } ) ; browser . addStatusTextListener ( new StatusTextListener ( ) { public void changed ( StatusTextEvent event ) { status . setText ( event . text ) ; } } ) ; browser . addLocationListener ( new LocationListener ( ) { public void changed ( LocationEvent event ) { if ( event . top ) location . setText ( event . location ) ; } public void changing ( LocationEvent event ) { } } ) ; itemBack . addListener ( Selection , listener ) ; itemForward . addListener ( Selection , listener ) ; itemStop . addListener ( Selection , listener ) ; itemRefresh . addListener ( Selection , listener ) ; itemGo . addListener ( Selection , listener ) ; location . addListener ( DefaultSelection , new Listener ( ) { public void handleEvent ( Event e ) { browser . setUrl ( location . getText ( ) ) ; } } ) ; shell . open ( ) ; browser . setUrl ( "http:////eclipse.org" ) ; while ( ! ( shell . isDisposed ( ) ) ) { if ( ! ( display . readAndDispatch ( ) ) ) display . sleep ( ) ; } display . dispose ( ) ; } }

Fix:
System . out . println ( ( "Could<seq2seq4repair_space>not<seq2seq4repair_space>instantiate<seq2seq4repair_space>Browser:<seq2seq4repair_space>" + ( e . getMessage ( ) ) ) ) ;